<html>
    <head>
        <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"
              rel="stylesheet"/>
    </head>
    <body>
        <div id="my-app"></div>
        <script src="new_file.js" type="text/javascript"></script>
    </body>
</html>